10 Warsaw

WARSAW, POLAND

POPULATION: 1.86 MILLION

KEY PROJECT: CZAJKA WASTEWATER TREATMENT PLANT

COMPANY: VEOLIA

VP SUSTAINABLE DEVELOPMENT: PIERRE-YVES POULIQUEN

has committed to a Green City Action Plan( GCAP) and aims to cut emissions by 40 % by 2030 in line with EBRD Green Cities. Poland’ s first low emission zone was launched in July 2024 in Warsaw across roughly 7 % of the city.

In 2004, just 30 to 40 % of Greater Warsaw’ s wastewater was treated and most flowed directly into the Vistula River. In 2013, significant upgrades to the Czajka Wastewater Treatment Plant were inaugurated by Veolia Water with a 30 kilometre wastewater collection system.

Pierre-Yves Pouliquen, VP Sustainable Development, Veolia

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32 December 2025

CREDIT: WTE WASSERTECHNIK